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db update - duplicate error

Thread began 8/22/2012 12:11 pm by software.current355386 | Last modified 9/04/2012 2:09 pm by software.current355386 | 726 views | 8 replies


done some moire testing with the following hope this helps

Created simple Table

ID – auto increment primary key
T1 – text 80 long
T2 – text 30 long

Used option to create database pages, did this , changing ID to hidden and including all fields on all reports (ex search)

Results opened up, no records as expected,

insert entered text in T1, pressed insert,
record added as record #1
update filled in details T2, pressed update
got blank details page saying
This record been removed,
ID now changed to #0

results showed details of #0
update more changes made all worked
insert added new record ID #2
update #2 Duplicate entry 0 for PRIMARY

added further records , tried to change, with same results

next test
truncated table
added 3 records
the first record to be updated its ID id changes to 0 , and its only this record that will accept changed yet more records can be added.

Hope this helps

nb verified ID's with Navicat

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